/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package controle;

import dao.Dao;
import entidades.Usuario;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author a968935
 */
public class LoginServlet extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            /* TODO output your page here
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet LoginServlet</title>");  
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet LoginServlet at " + request.getContextPath () + "</h1>");
            out.println("</body>");
            out.println("</html>");
             */
        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String login = request.getParameter("login");
        String senha = request.getParameter("senha");
        Dao<Usuario> daoU = new Dao<Usuario>(Usuario.class);
        List<Usuario> usuarios = daoU.listByLoginandSenha(login, senha);
        //validação da senha e login
        for (Usuario u : usuarios) {
            if ((u.getLogin().equals(login)) && (u.getSenha().equals(senha))) {
            }
        }
        if (usuarios.size() > 0) {// tem um usuario com aquele login senha
            Usuario usuario = usuarios.get(0);//pega aquele usuario

            HttpSession session = request.getSession(true); //para outras ocasioes, HttpSession session = request.getSession();
            session.setAttribute("usuario", usuario); //isso coloca dentro da sessao, 
            // para pagar o atributo => session.getAttribute("nomeDoAtributo");

            response.sendRedirect("Logado.jsp");
        } else {
            response.sendRedirect("erro.jsp");
        }

    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
